Stud.



J. A. BUFFINTON.

STUD.

APPLICATION FILED APR. 3, 1912. 1 ,O48,292, Patented Dec. 24, 1912.

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UNITED STATES PATENT ()FFICE JOHN A. BUFFINTON, OF PROVIDENCE, RHODE ISLAND, ASSIGNOR TO POTTER & BUFFINTON COMPANY, A CORPORATION OF RHODE ISLAND.

STUD.

Specification of Letters Patent.

Patented Dec. 24, 1912.

To all whom it may concern:

Be it known that I, JOHN A. BUFFINTON, a citizen of the United States, residing at Providence, in the county of Providence and State of Rhode Island, have invented certain new and useful Improvements in Studs, of which the following is a specification.

My invention relates to that class of studs which are provided with a hollow shoe or post in conjunction with which the stud or button member is longitudinally movable.

The objects of my invention lnclude those commonly sought in this class of structures, and more particularly to facilitate the insertion of the button into the buttonhole and to provide a convenient operation of the parts as well as to minimize the expense of manufacture.

To the above ends essentially my invention consists in such parts and combinations of parts as fall within the scope of the appended claim.

In the drawings which form a part of this specification,-Figure 1 is a side elevation of my stud or button, Figs. 2 and 3 are longitudinal sections of the shoe showing the remaining parts in side elevation, respectively indicating the parts in engaged and disengaged positions, Fig. 4 is a plan view of the shoe with the remaining parts omitted, Fig. 5, an end elevation of the same, Figs. 6 and 7, plan and side elevations respectively of the slidable block, and Fig. 8, a detail view of the button member and connecting link.

Like reference characters indicate like parts throughout the views.

My button or stud comprises a shoe A provided with the usual longitudinal slot 42 extending to the rear portion of the shoe. The end B of the shoe is provided with a diametrically disposed slot 6 forming a continuation of the slot at. Slidably mounted in this shoe is a cylindrical block C provided with a longitudinal slot or bifurcation a dividing the body G into spring fingers 0. The block 0 is cut away as at (Z, and the portion at of the block 03 is provided with a hole d through which loosely passes a ring E fixed in one end of the post or shank 0g stud or button F provided with 2.

The operation of my stud for insertion 1s similar in general principle to that so well known in this class of devices, except that by virtue of the ring E movable in the slot 5 in the end of the tube, the button shank f is enabled to and does assume a position substantially in alinement with the slid-able member or block G, as shown in Fig. 3, whereby the entrance of the shoe into the buttonhole is facilitated not only because of the alincd position of the button shank, but also because a greater degree of pressure can be applied through the head to the shoe by the operator before the shoe is pivoted into its final position. It will be understood that the ring E slides in the slot a of the shoe and is also movable at the end of its travel when desired downwardly into the slot b to effect the ends already referred to. The resilient spring fingers 0 supplemented by their annular shoulders c afford the necessary friction between the block and the shoe during the travel of former in the latter.

What I claim is,

In a stud, the combination of a shoe provided with a longitudinally disposed slot in its side and with a transversely disposed slot in its end registering with the first mentioned slot, at block mounted to slide in the shoe with a close fit and a portion of its side near one end cut away, the reduced portion so formed of said block being provided with an opening, a stud member exterior of the shoe, and a ring fixed to the end of the stud member and passing through the opening in the block.

In testimony whereof I have affixed my signature in presence of two witnesses.

JOHN A; BUFFIN TON.

Witnesses:

Homvrro E. BnLLows, FRED W. PERKINS.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. 0. 

